:root {
    --sl-teal: #0f6f73;
    --sl-teal-dark: #0a5154;
    --sl-yellow: #f0c72e;
    --sl-ink: #183238;
    --sl-muted: #65777b;
    --sl-soft: #eef7f6;
    --sl-border: #d8e6e4;
    --sl-white: #ffffff;
    --sl-danger: #9d2f2f;
}

.sl-catalog,
.sl-single-book,
.sl-donation {
    color: var(--sl-ink);
    font-family: inherit;
}

.sl-hero {
    margin: 0 0 1.5rem;
    padding: clamp(1.5rem, 4vw, 3rem);
    border-radius: 22px;
    background: linear-gradient(135deg, var(--sl-teal), var(--sl-teal-dark));
    color: var(--sl-white);
    position: relative;
    overflow: hidden;
}

.sl-hero::after {
    content: "📚";
    position: absolute;
    right: 1.5rem;
    bottom: -0.5rem;
    font-size: clamp(4rem, 12vw, 8rem);
    opacity: 0.14;
}

.sl-hero h2 {
    margin: 0 0 0.35rem;
    color: inherit;
    font-size: clamp(2rem, 6vw, 4rem);
    line-height: 1;
}

.sl-hero p {
    margin: 0;
    max-width: 52rem;
}

.sl-hero-small h2 {
    font-size: clamp(2rem, 5vw, 3rem);
}

.sl-eyebrow {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 800;
    color: var(--sl-yellow);
    margin-bottom: 0.6rem !important;
}

.sl-filters,
.sl-donation-form,
.sl-action-panel {
    background: var(--sl-white);
    border: 1px solid var(--sl-border);
    border-radius: 18px;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(15, 111, 115, 0.06);
}

.sl-filters {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) auto;
    align-items: end;
    gap: 0.8rem;
}

.sl-filters label,
.sl-donation-form label,
.sl-action-panel label {
    display: grid;
    gap: 0.35rem;
}

.sl-filters label > span,
.sl-donation-form label > span,
.sl-action-panel label > span {
    font-size: 0.82rem;
    font-weight: 700;
}

.sl-filters input,
.sl-filters select,
.sl-donation-form input,
.sl-donation-form select,
.sl-donation-form textarea,
.sl-action-panel textarea {
    width: 100%;
    border: 1px solid var(--sl-border);
    border-radius: 10px;
    padding: 0.72rem 0.8rem;
    background: #fff;
    color: var(--sl-ink);
    font: inherit;
}

.sl-filters button,
.sl-donation-form button,
.sl-action-panel button {
    border: 0;
    border-radius: 10px;
    padding: 0.78rem 1rem;
    background: var(--sl-teal);
    color: #fff;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.15s ease, background 0.15s ease;
}

.sl-filters button:hover,
.sl-donation-form button:hover,
.sl-action-panel button:hover {
    background: var(--sl-teal-dark);
    transform: translateY(-1px);
}

.sl-action-panel button.sl-secondary {
    background: #edf4f3;
    color: var(--sl-teal-dark);
}

.sl-summary {
    margin: 1rem 0;
    color: var(--sl-muted);
}

.sl-book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1rem;
}

.sl-book-card {
    background: var(--sl-white);
    border: 1px solid var(--sl-border);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(24, 50, 56, 0.06);
    display: flex;
    flex-direction: column;
}

.sl-cover {
    display: grid;
    place-items: center;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--sl-soft);
    text-decoration: none;
}

.sl-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sl-cover-placeholder {
    font-size: 4rem;
}

.sl-book-card-body {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.sl-book-card h3 {
    margin: 0.65rem 0 0.25rem;
    font-size: 1.08rem;
    line-height: 1.25;
}

.sl-book-card h3 a,
.sl-card-link {
    color: var(--sl-ink);
    text-decoration: none;
}

.sl-author,
.sl-code {
    margin: 0.15rem 0;
    color: var(--sl-muted);
    font-size: 0.9rem;
}

.sl-code {
    font-weight: 800;
    letter-spacing: 0.04em;
}

.sl-card-link {
    margin-top: auto;
    padding-top: 0.9rem;
    font-weight: 800;
    color: var(--sl-teal);
}

.sl-status {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    border-radius: 999px;
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 800;
}

.sl-status-available {
    background: #dff5e8;
    color: #176a3d;
}

.sl-status-circulating {
    background: #fff3c7;
    color: #806300;
}

.sl-status-reserved {
    background: #e9e5ff;
    color: #5345a6;
}

.sl-status-unavailable {
    background: #fbe1e1;
    color: #8e2d2d;
}

.sl-book-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.8rem;
    margin: 1.2rem 0;
}

.sl-book-facts > div {
    padding: 0.9rem;
    border-radius: 12px;
    background: var(--sl-soft);
}

.sl-book-facts span {
    display: block;
    font-size: 0.75rem;
    color: var(--sl-muted);
    margin-bottom: 0.2rem;
}

.sl-current-status {
    margin: 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.sl-action-panel h3 {
    margin-top: 0;
}

.sl-action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 1rem;
}

.sl-note-field {
    margin-top: 0.5rem;
}

.sl-privacy-note {
    color: var(--sl-muted);
    font-size: 0.82rem;
}

.sl-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
}

.sl-donation-form {
    display: grid;
    gap: 0.9rem;
}

.sl-donation-form em {
    font-weight: 400;
    color: var(--sl-muted);
}

.sl-consent {
    grid-template-columns: auto 1fr !important;
    align-items: start;
}

.sl-consent input {
    width: auto;
    margin-top: 0.25rem;
}

.sl-notice {
    margin: 0 0 1rem;
    padding: 0.9rem 1rem;
    border-radius: 12px;
    font-weight: 700;
}

.sl-notice-success {
    background: #e0f5e8;
    color: #185f3c;
}

.sl-notice-error {
    background: #fbe4e4;
    color: #842a2a;
}

.sl-empty {
    padding: 2rem;
    text-align: center;
    border-radius: 14px;
    background: var(--sl-soft);
}

@media (max-width: 800px) {
    .sl-filters,
    .sl-form-grid {
        grid-template-columns: 1fr;
    }

    .sl-filters button {
        width: 100%;
    }
}